Who invented the extra day every four years?

Why do you have a leap year every 366 years?

You have a leap year every 4 years, not every 366 years. It has 366 days in it. The extra day makes up for the fact that a year is about 365.25 days, not 365 days. The four quarters are added together and added as an extra day every 4 years.You have a leap year every 4 years, not every 366 years. It has 366 days in it. The extra day makes up for the fact that a year is about 365.25 days, not 365 days. The four quarters are added together and added as an extra day every 4 years.You have a leap year every 4 years, not every 366 years. It has 366 days in it. The extra day makes up for the fact that a year is about 365.25 days, not 365 days. The four quarters are added together and added as an extra day every 4 years.You have a leap year every 4 years, not every 366 years. It has 366 days in it. The extra day makes up for the fact that a year is about 365.25 days, not 365 days. The four quarters are added together and added as an extra day every 4 years.You have a leap year every 4 years, not every 366 years. It has 366 days in it. The extra day makes up for the fact that a year is about 365.25 days, not 365 days. The four quarters are added together and added as an extra day every 4 years.You have a leap year every 4 years, not every 366 years. It has 366 days in it. The extra day makes up for the fact that a year is about 365.25 days, not 365 days. The four quarters are added together and added as an extra day every 4 years.You have a leap year every 4 years, not every 366 years. It has 366 days in it. The extra day makes up for the fact that a year is about 365.25 days, not 365 days. The four quarters are added together and added as an extra day every 4 years.You have a leap year every 4 years, not every 366 years. It has 366 days in it. The extra day makes up for the fact that a year is about 365.25 days, not 365 days. The four quarters are added together and added as an extra day every 4 years.You have a leap year every 4 years, not every 366 years. It has 366 days in it. The extra day makes up for the fact that a year is about 365.25 days, not 365 days. The four quarters are added together and added as an extra day every 4 years.You have a leap year every 4 years, not every 366 years. It has 366 days in it. The extra day makes up for the fact that a year is about 365.25 days, not 365 days. The four quarters are added together and added as an extra day every 4 years.You have a leap year every 4 years, not every 366 years. It has 366 days in it. The extra day makes up for the fact that a year is about 365.25 days, not 365 days. The four quarters are added together and added as an extra day every 4 years.

What year is with an extra day in February?

leap years have an extra day in february (feburary 29th) but leap years only happen every four years.

Why do you need to use leap year?

Every four years, one extra day is added into February. This is because of space. The earth takes 365 and a quarter days to make one full spin of the Sun. This is why there is an extra day every four years.

Why do you have leap year every four months?

You have a leap year every 4 years, not every 4 months. A leap year has 366 days in it. The extra day makes up for the fact that a year is about 365.25 days, not 365 days. The four quarters are added together and added as an extra day every 4 years.

Why did Feburary have to be the month with the extra day every four years?

because it is the only month that has the less amount of days

What happens to the extra quarter of a day each calendar year?

By having a leap year every four years.

Why is it that every four years you need to have to add oned day into your calendar?

Because one of our years is actually around 365 and a quarter days long and after four years, we have an extra day left over.

Why do you have an extra quarter day every four years?

Every four years, we have an extra quarter day added to our calendar in the form of Leap Day (February 29) to account for the fact that a complete orbit of the Earth around the Sun takes approximately 365.25 days. This means that, without the extra day, our calendar would gradually drift out of sync with the seasons. By adding an extra day every four years, we maintain alignment between our calendar and the Earth's position in relation to the Sun. This adjustment helps keep our seasonal and astronomical events consistent over time.

What a leap year is and why you have them?

A leap year is when every four years at the end of Febuary we add an extra day to our calandar we do this because the earth takes 365 and one fourth of a day to revolution around the sun so every four years we put those fourths together to create an extra day.

How often are the summer Olympics?

The Olympics are held once every fourth year.

Why is an extra day added to February every four years-?

Earth takes about 365 and one quarter days to circle the sun once (one year). If we only had 365 days on the calendar, eventually the calendar would be WAY off from the seasons. By adding the extra day every four years, it keeps the calendar in step with the earth's orbit, and thus with the seasons.

What is the number of days in a year?

On the gregorian calender there is 365 days with one extra every four years as a leap year.